Sky Alerts

Rubin Observatory (LSST)

170657504864239745

Supernova 91% confidence

An exploding star, brightening over days and fading over weeks.

Open in the ALeRCE explorer ↗

First detected
4 months ago
Last detected
2 days ago
Detections
4
plus 5 forced measurements
Position (J2000)
23:54:41.93 -00:05:33.9
358.67470°, -0.09275°

Light curve

  • r band (2)
  • i band (2)
-4.0-2.00.0Jul 19Aug 8Aug 28Sep 17Oct 7Oct 272026-07-12 08:23 UTC · r band · -4.8 ± 0.2 µJy2026-07-12 09:05 UTC · i band · -4.5 ± 0.3 µJy2026-10-30 01:12 UTC · r band · -5.1 ± 0.2 µJy2026-10-31 03:41 UTC · i band · -3.5 ± 0.2 µJy
Difference flux (µJy). Times in UTC. Hover a point for its value.
Data table (4 points)
Time (UTC)MJDBandFlux (µJy)Error
2026-07-12 08:23 UTC61233.3498r-4.80.2
2026-07-12 09:05 UTC61233.3789i-4.50.3
2026-10-30 01:12 UTC61343.0505r-5.10.2
2026-10-31 03:41 UTC61344.1540i-3.50.2

Classification

stamp_classifier_rubin_beta_20260421 · 202

  • Supernova91%
  • Active galactic nucleus6%
  • Artifact2%

stamp_classifier_rubin_beta · 201

  • Supernova60%
  • Active galactic nucleus27%
  • Asteroid7%

nuclear_classifier · 1

  • At a galaxy core100%
  • Away from a galaxy core<1%
More classifiers and versions (1)

stamp_classifier_rubin_beta_20260421 · 2.0.2

  • Supernova91%

Where in the sky

-60°-30°0°+30°+60°0h4h8h12h16h20h24hRA 23:54:41.93, Dec -00:05:33.9
Whole sky, right ascension (hours) across, declination (degrees) up. The dashed curve is the plane of the Milky Way.